Relay Logic; Description Of Error Codes - Maytag CWG3100AA Series Service Manual

Testing Procedures
To avoid risk of electrical shock, personal injury or death; disconnect power and gas before servicing, unless
testing requires power and/or gas.
Controller
ERC3 NSC Cook Time
ERC3 NSC Stop Time
ERC3 NSC Timer
ERC3 NSC Twelve Hour Off
ERC3 NSC Supervisory Alarms

Relay Logic

Description of Error Codes

The control notifies the user of six different error situations. These errors generate an "F" code (displayed to the
right of the clock), emit an audible alarm at 1 second intervals and the control enters a "non-cook" mode. The table
below describes each "F" code. "F" codes F0, F6, F8, and F9 are not applicable.
"F" Code "F" Code Description
F1 Output Not Controllable
Bake/Broil Temperature
F2
Runaway
F3 *Open Temperature Sensor
F4 *Shorted Temperature Sensor
F5 *Control Output Disabled
Function Key Shorted
F7
*Cancel Key cancels the audible alarm and removes the "F" code from the display.
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Function
Press the Cook Time pad until 0:00
and SET COOK TIME is displayed.
Use the slew up and slew down pads
to enter the desired cook time.
Press the Stop Time pad until 0:00
and SET STOP TIME is displayed.
Use the slew up and slew down pads
to enter the desired stop time.
Press the Timer pad until 0:00 and
SET TIMER is displayed. Use the
slew up and slew down pads to enter
the desired time.
Control automatically cancels any
cooking operation and removes all
relay drives 12 hours after the last pad
touch.
Control contains 6 supervisory alarms.
If an error occurs, an "F" code
displays to the right of the clock.
KEY INDEX
- OFF
- ON
- ON OR OFF (DETERMINED BY USER)
- TEMPERATURE CONTROLLED
COOKING MODE
IDLE
BAKE PREHEAT
BAKE
BROIL PREHEAT
BROIL
Possible shorted relay. Alarm fault monitor active until serviced.
Oven temperature exceeded 630° F. Oven temperature must drop
below 630° F before bake or broil function can be activated.
Controller not receiving data from temperature sensor.
Controller receiving erroneous data from temperature sensor.
No control output.
A shorted function key prevents recognition of the cancel key and
requires removal of power until serviced.
WARNING
Procedure
Explanation
16026549
Results
Oven will bake for the selected amount
of time.
Oven will cease baking operations when
the stop time is reached.
Timer countdown is displayed and a
three-second tone is emitted when the
timer expires.
All baking operations discontinue after
12 hours.
Only current errors can be viewed.
See "Description of Error Codes" for
explanation.
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